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AUTO-DIMMING REARVIEW MIRROR INSPECTION [(US)]

AUTO-DIMMING REARVIEW MIRROR INSPECTION [(US)]

SM2566399


id0912000161x1



Operational Inspection

1.Switch the ignition ON (engine off or on).

2.Move the vehicle to a place with a showroom level of brightness.

3.Verify that the indicator light is illuminated.

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4.Verify that the indicator light switches when the auto-dimming mirror on/off switch is pressed.

5.While the indicator light is illuminated, verify that the mirror surface brightens.

6.Cover the front light sensor with a hand and verify that the mirror surface darkens when light is shone on the rear light sensor.

7.Remove your hand covering the front light sensor and verify that the mirror surface brightens.

• If the auto-dimming mirror does not operate, inspect the terminal voltage. (See Terminal Voltage Table (Reference).)



Terminal Voltage Table (Reference)

1.Remove the cover. (See FORWARD SENSING CAMERA (FSC) REMOVAL/INSTALLATION.)

2.Measure the voltage at each terminal.

• If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under “Inspection item (s)” and related wiring harnesses.
― If the system does not work properly even though the inspection items or related wiring harnesses do not have any malfunction, replace the auto-dimming mirror.
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Type A

Terminal

Signal name

Connected to

Measured condition

Voltage (V)

Inspection item(s)

A
OEC(-)
Auto dimming outer mirror
Switch the ignition ON (engine on or off)
0—1.3
• Auto dimming outer mirror
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
Detect the auto-dimming rearview mirror the level of the surrounding light and glare from vehicles at the rear using the light sensor.
0—1.3
B
GND
Body ground
Under any condition
1.0 or less
• Related wiring harnesses
C
D
R position signal
Indicator unit
R position
B+
• Indicator unit
• Related wiring harnesses
E
F
G
OEC(+)
Auto dimming outer mirror
Switch the ignition ON (engine on or off)
0—1.3
• Auto dimming outer mirror
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
Detect the auto-dimming rearview mirror the level of the surrounding light and glare from vehicles at the rear using the light sensor.
0—1.3
H
I
Power supply (IG1)
F47 15A fuse
Switch the ignition ON (engine on or off)
B+
• F47 15A fuse
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
J
Power supply (Battery)
F50 15A fuse
Under any condition
B+
• F50 15A fuse
• Related wiring harnesses

Type B

Terminal

Signal name

Connected to

Measured condition

Voltage (V)

Inspection item(s)

A
OEC(-)
Auto dimming outer mirror
Switch the ignition ON (engine on or off)
0—1.3
• Auto dimming outer mirror
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
Detect the auto-dimming rearview mirror the level of the surrounding light and glare from vehicles at the rear using the light sensor.
0—1.3
B
GND
Body ground
Under any condition
1.0 or less
• Related wiring harnesses
C
D
R position signal
Indicator unit
R position
B+
• Indicator unit
• Related wiring harnesses
E
F
G
OEC(+)
Auto dimming outer mirror
Switch the ignition ON (engine on or off)
0—1.3
• Auto dimming outer mirror
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
Detect the auto-dimming rearview mirror the level of the surrounding light and glare from vehicles at the rear using the light sensor.
0—1.3
H
I
Power supply (IG1)
F47 15A fuse
Switch the ignition ON (engine on or off)
B+
• F47 15A fuse
• Related wiring harnesses
Switch the ignition OFF (LOCK)
1.0 or less
J